X-linked myotubular myopathy in a family of two infant siblings: A case report and review

X-linked myotubular myopathy (XLMTM) is a severe type of congenital skeletal muscle disorder usually presenting at birth requiring extensive resuscitation. While having phenotypic variability, its diagnosis carries a poor prognosis due to high rates of hospitalization and mortality by early infancy....

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Main Authors: Amelia Suan-Lin Koe, Yee Yin Tan, Shrenik Vora
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Pediatrics and Neonatology
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Online Access:http://www.sciencedirect.com/science/article/pii/S187595722400113X
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author Amelia Suan-Lin Koe
Yee Yin Tan
Shrenik Vora
author_facet Amelia Suan-Lin Koe
Yee Yin Tan
Shrenik Vora
author_sort Amelia Suan-Lin Koe
collection DOAJ
description X-linked myotubular myopathy (XLMTM) is a severe type of congenital skeletal muscle disorder usually presenting at birth requiring extensive resuscitation. While having phenotypic variability, its diagnosis carries a poor prognosis due to high rates of hospitalization and mortality by early infancy. Management of patients with XLMTM should therefore be guided by shared decision-making with parents, considering the severity and progression of the disease, quality of life, and demands on caregivers. We describe a family unit of two half-siblings presenting with the severe neonatal form of XLMTM, with varying prognosis and outcomes. Furthermore, a novel maternally-derived c.343-1G > A variant in intron-5 of the MTM1 gene was identified in this family. Hereby, we propose an algorithm for the management of XLMTM, outlining important considerations during the antenatal and postnatal follow-up period.
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series Pediatrics and Neonatology
spelling doaj-art-3e30bc797c054077827e1d1eac84e27c2025-08-20T01:56:25ZengElsevierPediatrics and Neonatology1875-95722024-11-0165652753110.1016/j.pedneo.2024.02.009X-linked myotubular myopathy in a family of two infant siblings: A case report and reviewAmelia Suan-Lin Koe0Yee Yin Tan1Shrenik Vora2Corresponding author.; Department of Neonatology, KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 229899Department of Neonatology, KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 229899Department of Neonatology, KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 229899X-linked myotubular myopathy (XLMTM) is a severe type of congenital skeletal muscle disorder usually presenting at birth requiring extensive resuscitation. While having phenotypic variability, its diagnosis carries a poor prognosis due to high rates of hospitalization and mortality by early infancy. Management of patients with XLMTM should therefore be guided by shared decision-making with parents, considering the severity and progression of the disease, quality of life, and demands on caregivers. We describe a family unit of two half-siblings presenting with the severe neonatal form of XLMTM, with varying prognosis and outcomes. Furthermore, a novel maternally-derived c.343-1G > A variant in intron-5 of the MTM1 gene was identified in this family. Hereby, we propose an algorithm for the management of XLMTM, outlining important considerations during the antenatal and postnatal follow-up period.http://www.sciencedirect.com/science/article/pii/S187595722400113XHypotoniaNeurodevelopmental disorderX-linked myotubular myopathy
spellingShingle Amelia Suan-Lin Koe
Yee Yin Tan
Shrenik Vora
X-linked myotubular myopathy in a family of two infant siblings: A case report and review
Pediatrics and Neonatology
Hypotonia
Neurodevelopmental disorder
X-linked myotubular myopathy
title X-linked myotubular myopathy in a family of two infant siblings: A case report and review
title_full X-linked myotubular myopathy in a family of two infant siblings: A case report and review
title_fullStr X-linked myotubular myopathy in a family of two infant siblings: A case report and review
title_full_unstemmed X-linked myotubular myopathy in a family of two infant siblings: A case report and review
title_short X-linked myotubular myopathy in a family of two infant siblings: A case report and review
title_sort x linked myotubular myopathy in a family of two infant siblings a case report and review
topic Hypotonia
Neurodevelopmental disorder
X-linked myotubular myopathy
url http://www.sciencedirect.com/science/article/pii/S187595722400113X
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AT yeeyintan xlinkedmyotubularmyopathyinafamilyoftwoinfantsiblingsacasereportandreview
AT shrenikvora xlinkedmyotubularmyopathyinafamilyoftwoinfantsiblingsacasereportandreview